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60de5df9 | 1 | /* |
ad787160 C |
2 | * Copyright (c) 1983, 1993 |
3 | * The Regents of the University of California. All rights reserved. | |
46e9ea25 | 4 | * |
3dd3a9e5 KB |
5 | * This code is derived from software contributed to Berkeley by |
6 | * Edward Wang at The University of California, Berkeley. | |
7 | * | |
c0567266 KB |
8 | * Redistribution and use in source and binary forms, with or without |
9 | * modification, are permitted provided that the following conditions | |
10 | * are met: | |
11 | * 1. Redistributions of source code must retain the above copyright | |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * 2. Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in the | |
15 | * documentation and/or other materials provided with the distribution. | |
16 | * 3. All advertising materials mentioning features or use of this software | |
17 | * must display the following acknowledgement: | |
18 | * This product includes software developed by the University of | |
19 | * California, Berkeley and its contributors. | |
20 | * 4. Neither the name of the University nor the names of its contributors | |
21 | * may be used to endorse or promote products derived from this software | |
22 | * without specific prior written permission. | |
23 | * | |
24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
34 | * SUCH DAMAGE. | |
60de5df9 EW |
35 | */ |
36 | ||
46e9ea25 | 37 | #ifndef lint |
ad787160 | 38 | static char sccsid[] = "@(#)wwclreol.c 8.1 (Berkeley) 6/6/93"; |
46e9ea25 KB |
39 | #endif /* not lint */ |
40 | ||
a43a8870 | 41 | #include "ww.h" |
e908bfac | 42 | #include "tt.h" |
a43a8870 EW |
43 | |
44 | /* | |
45 | * Clear w to the end of line. | |
6a1ef78a | 46 | * If cleared is true, then the screen line has already been cleared. |
a43a8870 | 47 | */ |
f2a77fe1 | 48 | wwclreol1(w, row, col, cleared) |
a43a8870 | 49 | register struct ww *w; |
f2a77fe1 | 50 | int row, col; |
14f251df | 51 | char cleared; |
a43a8870 EW |
52 | { |
53 | register i; | |
a43a8870 | 54 | |
19f9784c EW |
55 | /* |
56 | * Clear the buffer right off | |
57 | */ | |
58 | { | |
59 | register union ww_char *buf; | |
60 | ||
f2a77fe1 EW |
61 | buf = &w->ww_buf[row][col]; |
62 | for (i = w->ww_b.r - col; --i >= 0;) | |
a43a8870 | 63 | buf++->c_w = ' '; |
a43a8870 | 64 | } |
19f9784c EW |
65 | |
66 | /* | |
67 | * If can't see it, just return. | |
68 | */ | |
f2a77fe1 EW |
69 | if (row < w->ww_i.t || row >= w->ww_i.b |
70 | || w->ww_i.r <= 0 || w->ww_i.r <= col) | |
19f9784c EW |
71 | return; |
72 | ||
f2a77fe1 EW |
73 | if (col < w->ww_i.l) |
74 | col = w->ww_i.l; | |
19f9784c EW |
75 | |
76 | /* | |
6a1ef78a | 77 | * Now fix wwns. |
19f9784c | 78 | */ |
6a1ef78a | 79 | { |
19f9784c EW |
80 | register union ww_char *s; |
81 | register char *smap, *win; | |
19f9784c | 82 | |
2012dbdd EW |
83 | i = col; |
84 | smap = &wwsmap[row][i]; | |
85 | s = &wwns[row][i]; | |
86 | win = &w->ww_win[row][i]; | |
6a1ef78a EW |
87 | for (i = w->ww_i.r - i; --i >= 0;) |
88 | if (*smap++ == w->ww_index) | |
89 | s++->c_w = ' ' | *win++ << WWC_MSHIFT; | |
90 | else | |
91 | s++, win++; | |
a43a8870 | 92 | } |
6a1ef78a EW |
93 | if (!cleared) |
94 | wwtouched[row] |= WWU_TOUCHED; | |
a43a8870 | 95 | } |